linux-kernel - Re: [kbuild ack?] Re: [PATCH v6 0/9] x86: macrofying inline asm for better compilation

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Date:   Wed, 18 Jul 2018 10:47:10 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     Nadav Amit <namit@...are.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        X86 ML <x86@...nel.org>, Ingo Molnar <mingo@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Sam Ravnborg <sam@...nborg.org>,
        Alok Kataria <akataria@...are.com>,
        Christopher Li <sparse@...isli.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "H. Peter Anvin" <hpa@...or.com>, Jan Beulich <JBeulich@...e.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Juergen Gross <jgross@...e.com>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        Kees Cook <keescook@...omium.org>,
        "linux-sparse@...r.kernel.org" <linux-sparse@...r.kernel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Philippe Ombredanne <pombredanne@...b.com>,
        "virtualization@...ts.linux-foundation.org" 
        <virtualization@...ts.linux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [kbuild ack?] Re: [PATCH v6 0/9] x86: macrofying inline asm for
 better compilation

2018-07-16 6:54 GMT+09:00 Ingo Molnar <mingo@...nel.org>:
>
> * Nadav Amit <namit@...are.com> wrote:
>
>> > I ran some limited number of benchmarks, and in general the performance
>> > impact is not very notable. You can still see >10 cycles shaved off some
>> > syscalls that manipulate page-tables (e.g., mprotect()), in which
>> > paravirt caused many functions not to be inlined. In addition this
>> > patch-set can prevent issues such as [1], and improves code readability
>> > and maintainability.
>
> Ok, that's good enough as a benefit, I suppose.
>
>> > Nadav Amit (9):
>> >  Makefile: Prepare for using macros for inline asm
>
> This non-trivial kbuild patch needs an Acked-by from Masahiro.


Sorry for delay.

I've issued Acked-by to 1/9 now.

Thanks.



> Thanks,
>
>         Ingo



-- 
Best Regards
Masahiro Yamada